terryjoo / google_test_exmaple

C++ testing example.

Google Test Example

# google test
include(FetchContent)
FetchContent_Declare(
        googletest
        URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
)
# For Windows: Prevent overriding the parent project's compiler/linker settings
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(googletest)


## testing
enable_testing()

add_executable(
        hello_test
        hello_test.cc
)
target_link_libraries(
        hello_test
        GTest::gtest_main
)

include(GoogleTest)
gtest_discover_tests(hello_test)

Quick Start

1. Add scripts to CmakeLists.txt

   # google test
   include(FetchContent)
   FetchContent_Declare(
   googletest
   URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
   )
   # For Windows: Prevent overriding the parent project's compiler/linker settings
   set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
   FetchContent_MakeAvailable(googletest)
   
   
   ## testing
   enable_testing()
   
   add_executable( # TODO: Change this
   hello_test  
   hello_test.cc
   )
   target_link_libraries(
   hello_test  # TODO: Change this
   GTest::gtest_main
   )
   
   include(GoogleTest)
   gtest_discover_tests(hello_test)  # TODO: Change this

2. Add test file(e.g. hello_test.cc)

   #include <gtest/gtest.h>
   
   // Demonstrate some basic assertions.
   TEST(HelloTest, BasicAssertions) {
   // Expect two strings not to be equal.
   EXPECT_STRNE("hello", "world");
   // Expect equality.
   EXPECT_EQ(7 * 6, 42);
   }

3. Build and test

   cmake -S . -B build
   cmake --build build
   cd build && ctest

Reference

• GoogleTest(Cmake)
• Korean document for CLion